Gas-tank safety-lock



AI B. BURHESE.

GAS TANK SAFETY LUCK.

APPLICATION FILED MAR. 25, 1920.

1,372,400. Patented Mar. 22, 1921.

Invenar gzu rrese.

A y] [Mill/l1.

Lamar B. BURRESE, or snnnouwoonnniz, wnsnineron. n

'ens-TANK SAFETY-noon.

y `Specification of Letters Patent.

`Patented 22, 1921.

Application led March A25, 1920. Serial No. 368,810. l

T o all whom t may concern Be it known that I, ALBERT B iBURREsE, a citizen of the United States, residing at Sedro Woolley, in the county of Skagit and State of Washington, have invented certain new and useful Improvements in Gas- Tank Safety-Locksg and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in tank safety locks and has for its .primary object the provision of means which will effectively close both the filling and outlet ports of a tank against being opened by an unauthorized person, thereby providing a device especially adaptable for use on fuel tanks of automobiles, which will prevent starting of the engine and also obviates the removal of the fuel from the tank. A

Another object of this invention is the provision of a tank safety lock of the above stated character, which shall be simple, durable and efhcient, and which may be manufactured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination, and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings in which l Figure 1 's a vertical sectional view, illustrating a gas tank safety lock, constructed in accordance with my invention,

Fig. 2 is a top plan view illustrating the same,

Fig. 3 is a detail view illustrating a closure element,

Fior. 4 is a movable plug.

Referring in detail to the drawings, the numeral 1 indicates a fuel tank having the usual filling opening 2 and outlet nozzle 3 to which is connected a pipe 4g and which usually leads to the carbureter of the engine (not shown).

A closure element 5consists of a body 6 which has formed thereon an annular pordetail view illustrating a retion i adapted to lit within the opening 2 11 and be permanently secured thereto in any desired manner. The body 6 overlies the `opening 2 and projects beyond the same and is provided with a screw threaded opening 8 that extends through the annular portion 7 to receive a removable plug 9 which is threaded into said opening 8. The plug 9 is provided with a vent opening 10 to permit the fuel within the tank 1 to be under atmospheric pressure. The plug 9 is provided with a screw threaded opening 11 extending therethrough which receives a valve stem 12 that has its upper portion screw threaded for cooperation with the screw threads in the opening 11 and has threaded to its lower end a valve 14 of the needle type adapted to engage a valve seat 15 formed in the outlet nozzle 3.

A locking arm 16 is pivoted to the upper end of the valve stem 12 as illustrated at 17 and normally lies inslots 18 and 19 formed in the plug 9 and closure elements 5. The body 6 of the closure elements has formed thereon spaced ears 20 to receive the free end of the locking arm 16 and are provided with alining openings 21 to receive a padlock or like locking means to prevent the arm 16 from being swung out from between said ears. When the arm 16 is between the ears, and in the slots 18 and 19 the valve 14 is in engagement with the valve seat 15 preventing the fuelin the tank from passing `then be readily poured into the tank.

To permit fuel to pass into the pipe l i from the tank 1, the arm 16 is released from betweenthe ears and swung vertically and by rotating the stem 12, the same is elevated disengaging the valve 14 from the seat 15 permitting the fuel to flow through the nozzle 3 into the pipe 4. y

While I have shown and described the preferred embodiment of my invention7 it will be understood that minor changes in construction, combination, and arrangement of parts may be made without departing a nozzle provided with a valve seat7 a closure element permanently secured in said opening, a plug threaded in said closure ele- 'ment' and having a groove and a screw n threaded opening in communication with said groove, a Valve stem threaded in Vsaicl opening, a valve secured to said stem and engaging the seat, apertnred ears formed on the closure element, an arm pivoted to the 15 valve stem and lying Within the groove and between the ears, and a fastening means adapted to extend through the apertured ears.

In testimony whereof I aix my signature 20 in presence of two witnesses.

ALBERT B. BU'RRESE.

IVitnesses ONEY POWELL, J. B. HAToHETr. 

